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Palatal Mucosal Measurements in a J apanese Population Using Cone‐Beam Computed Tomography
Author(s) -
Ueno Daisuke,
Sekiguchi Rei,
Morita Masayuki,
Jayawardena Asiri,
Shinpo Satoro,
Sato Junichi,
Kobayashi Kaoru
Publication year - 2013
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12053
Subject(s) - cone beam computed tomography , molar , premolar , gingival margin , coronal plane , medicine , population , mandibular second molar , dentistry , fibrous joint , orthodontics , cone beam ct , computed tomography , anatomy , surgery , environmental health
Statement of the Problem Although assessment of entire palatal mucosal thickness is important in many dental procedures, available data are mostly limited to the lateral aspect of the palate. Purpose of the Study The objective of this study was to use cone‐beam computed tomography ( CBCT ) to perform a comprehensive analysis of the palatal mucosal thickness from the gingival margin to the mid‐palatine suture in a J apanese population. Associations of palatal mucosal thickness with the palatal vault depth were also examined. Methods/Materials Measurements on the coronal plane were obtained from 44 adults with 3‐mm interval in the canine ( C a), first premolar ( P1 ), second premolar ( P2 ), midpoint between first and second molars ( M1 d ), first molar ( M1 ), and second molar ( M2 ). Furthermore, the location of greater palatine foramen ( GPF ) and palatine groove ( PG ) were also investigated. Results Canine region did not show a significant difference throughout measured points. P1 , P2 , and all molar regions were thickest at 9, 12, and 12 mm from the gingival margin, respectively. At 3 and 6 mm, C a, P1 , and P2 showed significantly greater thickness than the molar region. At 9 mm, P1 demonstrated a greater thickness than M1 d , and P2 was greater than M1 and Mi . At 12 and 15 mm, P1 was thinner than P2 , M1 , and M2 , whereas P2 was thinner than M2 . M1 was thinner than M2 . The high‐vault group showed a significantly greater thickness than the low‐vault group. In majority of subjects, GPF and PG were identified in second molar and first premolar to first molar, respectively. Conclusion Palatal mucosa in a Japanese population was the thickest in canine to premolar regions at 9 to 12 mm from the gingival margin. Identification of GPF and PG using CBCT can assist diagnosis of palate seems to minimize surgical complications. Clinical Significance This study evaluated the thickness of palatal mucosa in a J apanese population using cone‐beam computed tomography, covering a wide range. Canine to second premolar regions are the most suitable in harvesting palatal mucosa for the purpose of soft tissue grafts.